Test Statistic For Correlation Coefficient Calculator. The sample data are used to compute r the correlation coefficient for the sampleIf we had data for the entire population we could find the population correlation coefficient. The p -value is the combined area in both tails.
Enter the sample size n and the significance level alpha and the solver will compute the critical correlation coefficient r_c. To begin you need to add your data to the text boxes below either one value per line or as a comma delimited list. So for example you could use this test to find out whether peoples height and weight are correlated.
The correlation coefficient r tells us about the strength and direction of the linear relationship between X 1 and X 2.
The null hypothesis is rejected when the z-statistic lies on the rejection region which is determined by the significance level alpha and the type of tail two-tailed left-tailed or right-tailed. You may enter data in one of the following two formats. Statistics often denoted by CorrX Y or rX Y used to find the degree or magnitude of linear relationship between two or more variables in statistical experiments. Correlation Coefficient Calculator Instructions.
